package com.demo1;

/**
 * Created by Administrator on 2017/3/25.
 */
public class SuanShu3 {
    public static void main(String[] args) {
        String s1 = "Hello";
        String s2 = "World";
        String s3 = s1 + s2;
        System.out.println(s3);
    }
}
